National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

New Castle Municipal Airport (KUCP)

Lat: 41.02°NLon: 80.42°WElev: 1072ft.

Light Rain

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 29.95 in (1014.9 mb)
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 17 Aug 7:56 am EDT
Extended Forecast for

New Castle Northwest PA

  • Today

    Today: Scattered showers before 11am, then scattered showers and thunderstorms between 11am and noon. Partly sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 30%.

    High: 81 °F

    Scattered
    Showers then
    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 58. Light north wind.

    Low: 58 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. West wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers before 11am, then scattered showers and thunderstorms between 11am and noon. Partly sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 30%.
Tonight
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 58. Light north wind.
Tuesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Calm wind.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. West wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
New Castle Northwest PA
 41.02°N 80.37°W (Elev. 948 ft)
Last Update:
7:31 am EDT Aug 17, 2026
Forecast Valid:
8am EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation